Building Thin on Win/Ruby 1.9.2: gem install eventmachine --pre

posted 2010-Nov-15

I have to deploy a web application on Windows 2003 Server here at work. Due to a bug I was experiencing with Ruby 1.9.1 I was forced to upgrade the environment to Ruby 1.9.2 (along with DevKit 4.5.0). The applications I write nowadays tend to be based on Sinatra and served by Thin; this application was no different. Thin requires EventMachine, but I had trouble getting it installed.

Attempting to just install the eventmachine gem fails:

C:\>gem install eventmachine
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing eventmachine:
        ERROR: Failed to build gem native extension.

C:/Ruby/bin/ruby.exe extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... no
checking for rb_thread_check_ints()... yes
checking for rb_time_new()... yes
checking for windows.h... yes
checking for winsock.h... yes
checking for main() in -lkernel32... yes
checking for main() in -lrpcrt4... yes
checking for main() in -lgdi32... yes
checking for main() in -lssl... no
creating Makefile

make
g++ -I. -IC:/Ruby/include/ruby-1.9.1/i386-mingw32 -I/C/Ruby/include/ruby-1.9.1/ruby/backward -I/C/Ruby/include/ruby-1.9.
1 -I. -DBUILD_FOR_RUBY -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_TBR -DHAVE_RB_THREAD_CHECK_INTS -DHAVE_RB_TIME_NEW -DOS_W
IN32 -DHAVE_WINDOWS_H -DHAVE_WINSOCK_H -DWITHOUT_SSL -DHAVE_MAKE_PAIR    -O3 -g -Wextra -Wno-unused-parameter -Wno-paren
theses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long   -o binder.o -c binder.cpp
In file included from project.h:137:0,
                 from binder.cpp:20:
binder.h:35:34: warning: type qualifiers ignored on function return type
In file included from project.h:138:0,
                 from binder.cpp:20:
em.h:91:47: warning: type qualifiers ignored on function return type
em.h:92:76: warning: type qualifiers ignored on function return type
em.h:93:56: warning: type qualifiers ignored on function return type
em.h:95:57: warning: type qualifiers ignored on function return type
em.h:96:60: warning: type qualifiers ignored on function return type
em.h:97:58: warning: type qualifiers ignored on function return type
em.h:98:55: warning: type qualifiers ignored on function return type
em.h:99:36: warning: type qualifiers ignored on function return type
em.h:101:47: warning: type qualifiers ignored on function return type
em.h:106:42: warning: type qualifiers ignored on function return type
em.h:123:45: warning: type qualifiers ignored on function return type
em.h:132:36: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from binder.cpp:20:
eventmachine.h:45:61: warning: type qualifiers ignored on function return type
eventmachine.h:46:112: warning: type qualifiers ignored on function return type
eventmachine.h:47:69: warning: type qualifiers ignored on function return type
eventmachine.h:49:73: warning: type qualifiers ignored on function return type
eventmachine.h:62:75: warning: type qualifiers ignored on function return type
eventmachine.h:63:74: warning: type qualifiers ignored on function return type
eventmachine.h:64:77: warning: type qualifiers ignored on function return type
eventmachine.h:65:41: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from binder.cpp:20:
eventmachine.h:99:60: warning: type qualifiers ignored on function return type
eventmachine.h:100:58: warning: type qualifiers ignored on function return type
eventmachine.h:102:60: warning: type qualifiers ignored on function return type
eventmachine.h:105:41: warning: type qualifiers ignored on function return type
g++ -I. -IC:/Ruby/include/ruby-1.9.1/i386-mingw32 -I/C/Ruby/include/ruby-1.9.1/ruby/backward -I/C/Ruby/include/ruby-1.9.1 -I. -DBUILD_FOR_RUBY -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_TBR -DHAVE_RB_THREAD_CHECK_INTS -DHAVE_RB_TIME_NEW -DOS_WIN32 -DHAVE_WINDOWS_H -DHAVE_WINSOCK_H -DWITHOUT_SSL -DHAVE_MAKE_PAIR    -O3 -g -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long   -o cmain.o -c cmain.cpp
In file included from project.h:137:0,
                 from cmain.cpp:20:
binder.h:35:34: warning: type qualifiers ignored on function return type
In file included from project.h:138:0,
                 from cmain.cpp:20:
em.h:91:47: warning: type qualifiers ignored on function return type
em.h:92:76: warning: type qualifiers ignored on function return type
em.h:93:56: warning: type qualifiers ignored on function return type
em.h:95:57: warning: type qualifiers ignored on function return type
em.h:96:60: warning: type qualifiers ignored on function return type
em.h:97:58: warning: type qualifiers ignored on function return type
em.h:98:55: warning: type qualifiers ignored on function return type
em.h:99:36: warning: type qualifiers ignored on function return type
em.h:101:47: warning: type qualifiers ignored on function return type
em.h:106:42: warning: type qualifiers ignored on function return type
em.h:123:45: warning: type qualifiers ignored on function return type
em.h:132:36: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from cmain.cpp:20:
eventmachine.h:45:61: warning: type qualifiers ignored on function return type
eventmachine.h:46:112: warning: type qualifiers ignored on function return type
eventmachine.h:47:69: warning: type qualifiers ignored on function return type
eventmachine.h:49:73: warning: type qualifiers ignored on function return type
eventmachine.h:62:75: warning: type qualifiers ignored on function return type
eventmachine.h:63:74: warning: type qualifiers ignored on function return type
eventmachine.h:64:77: warning: type qualifiers ignored on function return type
eventmachine.h:65:41: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from cmain.cpp:20:
eventmachine.h:99:60: warning: type qualifiers ignored on function return type
eventmachine.h:100:58: warning: type qualifiers ignored on function return type
eventmachine.h:102:60: warning: type qualifiers ignored on function return type
eventmachine.h:105:41: warning: type qualifiers ignored on function return type
cmain.cpp:98:71: warning: type qualifiers ignored on function return type
cmain.cpp:109:122: warning: type qualifiers ignored on function return type
cmain.cpp:119:79: warning: type qualifiers ignored on function return type
cmain.cpp:129:83: warning: type qualifiers ignored on function return type
cmain.cpp:260:85: warning: type qualifiers ignored on function return type
cmain.cpp:270:84: warning: type qualifiers ignored on function return type
cmain.cpp:280:88: warning: type qualifiers ignored on function return type
cmain.cpp:290:51: warning: type qualifiers ignored on function return type
cmain.cpp:300:70: warning: type qualifiers ignored on function return type
cmain.cpp:320:55: warning: type qualifiers ignored on function return type
cmain.cpp:546:70: warning: type qualifiers ignored on function return type
cmain.cpp:669:68: warning: type qualifiers ignored on function return type
cmain.cpp: In function 'int evma_send_file_data_to_connection(long unsigned int, const char*)':
cmain.cpp:752:6: error: cannot convert 'stat*' to '_stati64*' for argument '2' to 'int _fstati64(int, _stati64*)'
make: *** [cmain.o] Error 1


Gem files will remain installed in C:/Ruby/lib/ruby/gems/1.9.1/gems/eventmachine-0.12.10 for inspection.
Results logged to C:/Ruby/lib/ruby/gems/1.9.1/gems/eventmachine-0.12.10/ext/gem_make.out

I read on several forum posts that I had to get the latest source from GitHub, but attempting to build the gem there failed (albeit in a different way):

C:\eventmachine>rake build
(in C:/eventmachine)
cd ext
C:/Ruby/bin/ruby.exe extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=C:/Ruby/bin/ruby
C:/Ruby/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:446:in `try_compile'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:568:in `try_var'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:816:in `block in have_var'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:254:in `open'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:254:in `open'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
        from C:/Ruby/lib/ruby/1.9.1/mkmf.rb:815:in `have_var'
        from extconf.rb:16:in `
' rake aborted! Command failed with status (1): [C:/Ruby/bin/ruby.exe extconf.rb...] C:/Ruby/lib/ruby/1.9.1/rake.rb:993:in `block in sh' C:/Ruby/lib/ruby/1.9.1/rake.rb:1008:in `call' C:/Ruby/lib/ruby/1.9.1/rake.rb:1008:in `sh' C:/Ruby/lib/ruby/1.9.1/rake.rb:1092:in `sh' C:/Ruby/lib/ruby/1.9.1/rake.rb:1027:in `ruby' C:/Ruby/lib/ruby/1.9.1/rake.rb:1092:in `ruby' C:/eventmachine/Rakefile:148:in `block (3 levels) in ' C:/Ruby/lib/ruby/1.9.1/fileutils.rb:121:in `chdir' C:/Ruby/lib/ruby/1.9.1/fileutils.rb:121:in `cd' C:/Ruby/lib/ruby/1.9.1/rake.rb:1092:in `chdir' C:/eventmachine/Rakefile:147:in `block (2 levels) in ' C:/Ruby/lib/ruby/1.9.1/rake.rb:634:in `call' C:/Ruby/lib/ruby/1.9.1/rake.rb:634:in `block in execute' C:/Ruby/lib/ruby/1.9.1/rake.rb:629:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:629:in `execute' C:/Ruby/lib/ruby/1.9.1/rake.rb:595:in `block in invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' C:/Ruby/lib/ruby/1.9.1/rake.rb:588:in `invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/rake.rb:605:in `block in invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:594:in `block in invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' C:/Ruby/lib/ruby/1.9.1/rake.rb:588:in `invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/rake.rb:605:in `block in invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:594:in `block in invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' C:/Ruby/lib/ruby/1.9.1/rake.rb:588:in `invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/rake.rb:605:in `block in invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:594:in `block in invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' C:/Ruby/lib/ruby/1.9.1/rake.rb:588:in `invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/rake.rb:605:in `block in invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:602:in `invoke_prerequisites' C:/Ruby/lib/ruby/1.9.1/rake.rb:594:in `block in invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize' C:/Ruby/lib/ruby/1.9.1/rake.rb:588:in `invoke_with_call_chain' C:/Ruby/lib/ruby/1.9.1/rake.rb:581:in `invoke' C:/Ruby/lib/ruby/1.9.1/rake.rb:2041:in `invoke_task' C:/Ruby/lib/ruby/1.9.1/rake.rb:2019:in `block (2 levels) in top_level' C:/Ruby/lib/ruby/1.9.1/rake.rb:2019:in `each' C:/Ruby/lib/ruby/1.9.1/rake.rb:2019:in `block in top_level' C:/Ruby/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling' C:/Ruby/lib/ruby/1.9.1/rake.rb:2013:in `top_level' C:/Ruby/lib/ruby/1.9.1/rake.rb:1992:in `run' C:/Ruby/bin/rake:31:in `
'

The key to success was given by tmm1 on the #eventmachine IRC channel (on Freenode.net):

gem install eventmachine --pre

Using the above caused the gem to install without problem, and I was then able to install Thin (gem install thin) without further incident. I'm told that this should not be necessary 'soon', but for now, there's the answer.

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